Good luck with that. In the two worst cases I remember, those lighters discharged their entire contents in the span of two to three seconds. Both times they were in my pocket and not in use, lol. Lessons learned.
Your experience makes no sense to me.
The laws of physics say that extreme cold should DECREASE the pressure exerted by the butane, not increase it. If you had been in the Mojave desert in extremely HIGH temperature, I would expect the possibility of increased pressure induced leakage, not in extreme cold.
This sounds like a "Challenger O-ring" type seal failure QA problem.
Were both lighters the same brand?? El cheapo checkout line type, or good quality??
Any other FR hunters or outdoor types have a similar issue with butane lighters??